SAMSUNG KA2197

KA2197D
RGB ENCODER FOR NTSC
RGB ENCODER
24-SOP
The KA2197 is a monolithic integrated circuit designed
for RGB encoder of video system. This device contains
matrix of R-Y/B-Y, modulator, pulse generator, regulator
and built in BPF of chroma and delay line of luminance
and Y/C output using S-VHS system.
The KA2197D is suitable for video equipment.
FUNCTIONS
• Regulator
• Mixer of R-Y, B-Y
• Modulator
• Pulse generator
• Audio buffer
• X-tal oscillator
• Clamp circuit
• BPF & D.L circuit
• Y/C output
ORDERING INFORMATION
Device Package Operating Temperature
KA2197D 24SOP
-20°C ~+70°C
BLOCK DIAGRAM
24
23
22
G
R
21
B
R,G,B OUTPUT
20
19
18
17
Y/C
MIXER
VIDEO
OUTPUT
16
15
Y OUT
C OUT
DL &
TRAP
3.58M
BPF
14
REGULATOR
R-Y MODULATOR
MATRIX
13
SYNC
ADD
+
B-Y MODULATOR
R,G,B CLAMP
R
1
2
G
3
X-TAL
OSC.
PHASE
SHIFTER
PULSE
GEN.
SYNC
OUT
BUFFER
B
4
5
6
7
8
9
10
11
12
KA2197D
RGB ENCODER FOR NTSC
PIN CONFIGURATION
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
DESCRIPTION
Pin NO
GND 1
RED INPUT
GREEN INPUT
BLUE INPUT
X-TAL OUT
X-TAL IN
N.C
AUDIO IN
AUDIO OUT
COMPOSITE SYNC INPUT
COMPOSITE SYNC OUTPUT
VCC 1
13
14
15
16
17
18
19
20
21
22
23
24
DESCRIPTION
REGULATOR CURRENT SINK
2V REGULATOR OUTPUT
C OUT
Y OUT
N.C
N.C
VCC 2
COMPOSITE VIDEO OUTPUT
BLUE OUTPUT
GREEN OUTPUT
RED OUTPUT
GND 2
* VCC 1, GND 1 : EXCEPT OUTPUT STAGE
* VCC 2, GND 2 : OUTPUT STAGE
ABSOLUTE MAXIMUM RATINGS (TA=25°C)
Characteristic
Supply Voltage
Power dissipation
Operating Temperature
Storage Temperature
Symbol
Value
Unit
VCC
PD
TOPR
TSTG
10
1250
-20~+70
-55~+150
V
mW
°C
°C
ELECTRICAL CHARACTERISTICS(TA=25°C, VCC=5V)
Characteristic
Supply Current 1
Supply Current 2
R Output Voltage
G Output Voltage
B Output Voltage
R Frequency Response
G Frequency Response
B Frequency Response
Sync. Level
R 100% Y Level
G 100% Y Level
B 100% Y Level
Symbol
Test Condition
Min
Typ
Max
Unit
ICC1
ICC2
VO
VO
VO
fC
fC
fC
VOS
VO
VO
VO
No Signal input
No Signal input
RIN =1 VP-P
GIN =1 VP-P
BIN =1 VP-P
R, G, B f = 200 KHz
-dB POINT
29
6.0
0.64
0.64
0.64
5
5
5
0.26
0.19
0.38
0.07
39
11
0.71
0.71
0.71
0.29
0.21
0.42
0.08
49
16
0.78
0.78
0.78
0.33
0.25
0.48
0.09
mA
mA
VP-P
VP-P
VP-P
MHz
MHz
MHz
V
V
V
V
Condition:R, G, B and
C Sync. input
Measure Composite
Video Output
KA2197D
RGB ENCODER FOR NTSC
Characteristic
Symbol
While 100% Y level
Differiential Gain
Differiential Phase
Burst Level
R Chroma Ratio
G Chroma Ratio
B Chroma Ratio
R Phase
G Phase
B Phase
Burst Width
Burst Position
Carrier Leakage
C Sync. Output Level
Audio Buffer Gain
Audio Freq. Response
Audio Distortion
Sync. Level
R 100% Y Level
G 100% Y Level
B 100% Y Level
White 100% Y Level
Burst Level
R Chroma ratio
G Chroma ratio
B Chroma ratio
VO
DG
DP
VOB
R/BN
G/BN
B/BN
SR
SG
SB
TWB
TDB
VI
VOS
GA
FA
THD
Y(CS)
Y(R)
Y(G)
Y(B)
Y(W)
C(BN)
C(R/BN)
C(G/BN)
C(B/BN)
Test Conditions
Composite Video
Output
1VP-P, f=1KHz
-3dB
1VP-P, f=1KHz
Y OUTPUT
C OUTPUT
Min
Typ
Max
Unit
0.64
0.22
2.8
2.65
2.01
94
231
337
2.5
0.45
0.2
-1.0
30
0.26
0.19
0.38
0.07
0.64
0.22
2.80
2.65
2.01
0.71
0.29
3.15
2.95
2.24
104
241
347
2.75
0.5
0.29
0
0.29
0.21
0.42
0.08
0.71
0.29
3.15
2.95
2.24
0.82
3.0
3.0
0.34
3.5
3.25
2.57
114
251
357
3.6
0.75
30
0.4
1.0
1.0
0.33
0.25
0.48
0.09
0.82
0.34
3.50
3.25
2.47
V
%
deg
VP-P
times
times
times
deg
deg
deg
us
us
mVP-P
VP-P
dB
KHz
%
VP-P
V
V
V
V
VP-P
time
time
time
KA2197D
RGB ENCODER FOR NTSC
TEST WAVEFORM
*R,G,B OUT
* COMPOSITE VIDEO OUT
2.0V
2.0V
SYNC IN
SYNC IN
64us
0.8V
0.8V
4.5us
1.0Vp-p R,G,B
f=200KHz
IN
Vo
R,G,B
OUT
1 Vp-p
R IN
1 Vp-p
G IN
1 Vp-p
B IN
COMPOSITE VIDEO OUT
*AUDIO OUT
AUDIO IN
Vin=1Vp-p
f=1kHz
2.0V
SYNC IN
0.8V
AUDIO OUT
Vo
Vos SYNC OUT
KA2197D
RGB ENCODER FOR NTSC
APPLICATION CIRCUIT
R
OUT
G
OUT
B
OUT
composite
video OUT
Y OUT
C OUT
0.01µF
+
75Ω
470µF
+
24
75Ω
75Ω
470µF 470µF 470µF
22
21
+
+
20
19
+
10µF
n.c
n.c
18
17
16
15
14
n.c
13
8
9
10
11
12
KA2197D
1
2
3
4
5
n.c
6
7
n.c
n.c
+
0.1µF
0.1µF
10µF
0.1µF
+
10µF
0.1µF
R
IN
G
IN
B
IN
75
AUDIO
IN
Vcc(5V)
100µF
75Ω
470µF
470µF
+
+
+
23
75Ω
75Ω
C. SYNC
IN
400 ~ 100mVp-p
fsc in
4.43MHz
** only using external fsc input
AUDIO
OUT